CN218768946U - Sealing structure of oil-immersed sine and cosine rotary transformer - Google Patents
Sealing structure of oil-immersed sine and cosine rotary transformer Download PDFInfo
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- CN218768946U CN218768946U CN202222466389.1U CN202222466389U CN218768946U CN 218768946 U CN218768946 U CN 218768946U CN 202222466389 U CN202222466389 U CN 202222466389U CN 218768946 U CN218768946 U CN 218768946U
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Abstract
The utility model belongs to sine and cosine resolver design technique relates to an immersion oil sine and cosine resolver's seal structure. The novel sealing structure adopts an integrally sealed sealing shell, and a sine-cosine resolver which does not have sealing performance per se is contained in the shell; the sealing structure is designed in the interfaces of the shell, the rotary transformer core and the electric connector, the contact pressure of the matching surface and the leakage clearance compensation are provided through the design of the sealing ring, the sealing type electric connector and the like, a completely closed cavity is formed in the product, and the purpose of sealing is finally achieved. The novel sealing structure can be used in aviation fuel oil with certain pressure, the inner cavity of the product is full of fuel oil and does not leak, and the novel sealing structure has an excellent sealing effect.
Description
Technical Field
The utility model belongs to sine and cosine resolver design technique relates to an immersion oil sine and cosine resolver's seal structure.
Background
At present, a commonly used sine and cosine resolver is a structure with a stator and a rotor matched with each other, and a bearing, a gasket, a hole elastic check ring and other parts are assembled and fixed at the front end and the rear end of the stator and the rotor. The rotary transformer with the structure is used in air under a normal state, can have a certain dustproof effect, but the stator and the rotor have a fit clearance from the front end to the rear end, and have no sealing property. If the air fuel oil pressure-adjustable sealing device is used in aviation fuel oil with certain pressure, the inner cavity of the product needs to be filled with the fuel oil, and leakage is not allowed, so that the product is required to have sealing performance. Therefore, the structural state cannot meet the use requirement of the sealing performance of aviation equipment, and a sealing structure of the oil-immersed sine-cosine resolver is required to effectively solve the problem.
Disclosure of Invention
The utility model aims at: a novel sealing structure of the oil-immersed sine and cosine resolver is designed to solve the problems.
For solving the technical problem, the technical proposal of the utility model is that:
a sealing structure of an oil-immersed sine and cosine resolver comprises a sine and cosine resolver movement 1, a sealing shell 2, a sealing type electric connector 3, a sealing ring a6 and a sealing ring b7; the sealing ring a6 is sleeved in a sealing groove 5 on the sine and cosine resolver core 1, the sine and cosine resolver core 1 with the sealing ring a6 is assembled and pressed into the sealing shell 2 for fixing, and then the sealing type electric connector 3 with the sealing ring b7 is assembled and pressed into the sealing shell 2 for fixing.
The sealing shell 2 is provided with interfaces with the sine and cosine resolver movement 1 and the sealing type electric connector 3; the other parts except the interface position adopt an integrated closed structure.
And the joint of the sealing shell 2, the sine and cosine resolver movement 1 and the sealed electric connector 3 is assembled by adopting a seam allowance, and is fastened by a screw 4.
And a sealing groove 5 is formed in the excircle of the matching surface between the sine and cosine resolver core 1 and the inner side of the sealing shell 2, and a sealing ring a6 made of rubber material is filled in the sealing groove.
The inner diameter of the sealing ring a6 is smaller than the outer diameter of the bottom circle of the sealing groove 5, the width of the sealing ring is smaller than that of the sealing groove, and the outer diameter of the sealing ring is larger than the inner diameter of the matching surface of the sealing shell 2.
The outer diameter of the sealing ring b7 is larger than the inner diameter of the sealing shell 2 at the matching surface.
The utility model has the advantages that:
the novel sealing structure of the oil-immersed sine and cosine resolver is designed into a structure of a sine and cosine resolver core and an integrated sealed shell and a sealed electric connector. The sine and cosine resolver which does not have sealing performance per se is contained in the shell through an integrally closed sealing shell; meanwhile, sealing structures are designed in interfaces of the shell, the sine and cosine resolver movement and the sealed electric connector, contact pressure of a matching surface and a leakage compensation clearance are provided through the design of a sealing ring, the sealed electric connector and the like, a completely sealed cavity is formed in a product, and the purpose of sealing is finally achieved. The utility model discloses seal structure can use in the aviation fuel that has certain pressure, is full of the fuel and the non-seepage has excellent sealed effect at the product inner chamber, is applicable to the aviation equipment product that has the leakproofness demand more and uses.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings required to be used in the examples of the present invention will be briefly explained below. It is obvious that the drawings described below are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be obtained from these drawings without inventive effort.
FIG. 1 is a schematic diagram of a conventional non-hermetic sine-cosine resolver;
fig. 2 is the sealing structure schematic diagram of the oil-immersed sine and cosine resolver of the present invention.
In the figure: 1 is sine and cosine resolver movement, 2 is a sealed shell, 3 is a sealed electric connector, 4 is a screw, 5 is a sealing groove, 6 is a sealing ring a, 7 is a sealing ring b.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention.
Features of various aspects of embodiments of the present invention will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without these specific details. The following description of the embodiments is merely intended to provide a better understanding of the invention by illustrating examples thereof. The present invention is not limited to any particular arrangement and method provided below, but covers any modification, replacement, etc. of all product structures, methods covered without departing from the spirit of the invention.
In the drawings and the following description, well-known structures and techniques are not shown to avoid unnecessarily obscuring the present invention.
Referring to fig. 2, the sealing structure of the oil-immersed sine and cosine resolver comprises a sine and cosine resolver movement 1, a sealing shell 2, a sealing type electric connector 3, a sealing ring a6 and a sealing ring b7; the sealing ring a6 is sleeved in a sealing groove 5 on the sine and cosine resolver core 1, the sine and cosine resolver core 1 with the sealing ring a6 is assembled and pressed into the sealing shell 2 for fixing, and then the sealing type electric connector 3 with the sealing ring b7 is assembled and pressed into the sealing shell 2 for fixing.
The sealing shell 2 is provided with interfaces with the sine and cosine resolver movement 1 and the sealing type electric connector 3; the other parts except the interface position adopt an integrated closed structure.
And the joint of the sealing shell 2, the sine and cosine resolver movement 1 and the sealed electric connector 3 is assembled by adopting a seam allowance, and is fastened by a screw 4.
And a sealing groove 5 is formed in the excircle of the matching surface between the sine and cosine resolver core 1 and the inner side of the sealing shell 2, and a sealing ring a6 made of rubber material is filled in the sealing groove.
The inner diameter of the sealing ring a6 is smaller than the outer diameter of the bottom circle of the sealing groove 5, the width of the sealing ring is smaller than that of the sealing groove, and the outer diameter of the sealing ring is larger than the inner diameter of the matching surface of the sealing shell 2.
The outer diameter of the sealing ring b7 is larger than the inner diameter of the sealing shell 2 at the matching surface.
The matching surfaces of the sealing shell 2, the sine and cosine resolver movement 1 and the sealing type electric connector 3 are in clearance fit.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or substitutions within the technical scope of the present invention, and these modifications or substitutions should be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides a seal structure of immersion oil sine and cosine resolver which characterized in that: the rotary transformer core comprises a sine and cosine rotary transformer core (1), a sealing shell (2), a sealing type electric connector (3), a sealing ring a (6) and a sealing ring b (7); a sealing ring a (6) is sleeved in a sealing groove (5) on a sine and cosine resolver movement (1), the sine and cosine resolver movement (1) with the sealing ring a (6) is assembled and pressed into a sealing shell (2) for fixing, and then a sealing type electric connector (3) with a sealing ring b (7) is assembled and pressed into the sealing shell (2) for fixing.
2. A sealing structure of an oil-impregnated sine and cosine resolver according to claim 1, wherein: the sealing shell (2) is provided with interfaces with the sine and cosine resolver movement (1) and the sealing type electric connector (3); the other parts except the interface position adopt an integrated closed structure.
3. A sealing structure of an oil-impregnated sine and cosine resolver according to claim 1, wherein: the joint of the sealed shell (2) and the sine and cosine resolver movement (1) and the sealed electric connector (3) is assembled by adopting a spigot, and is fastened by a screw (4).
4. A sealing structure of an oil-impregnated sine and cosine resolver according to claim 1, wherein: and a sealing groove (5) is formed in the excircle of the matching surface between the sine and cosine resolver core (1) and the inner side of the sealing shell (2), and a sealing ring a (6) made of rubber materials is filled in the sealing groove.
5. A sealing structure of an oil-impregnated sine and cosine resolver according to claim 1, wherein: the inner diameter of the sealing ring a (6) is smaller than the outer diameter of the bottom circle of the sealing groove (5), the width of the sealing ring a is smaller than that of the sealing groove, and the outer diameter of the sealing ring a is larger than the inner diameter of the matching surface of the sealing shell (2).
6. A sealing structure of an oil-impregnated sine and cosine resolver according to claim 1, wherein: the outer diameter of the sealing ring b (7) is larger than the inner diameter of the sealing shell (2) at the matching surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222466389.1U CN218768946U (en) | 2022-09-16 | 2022-09-16 | Sealing structure of oil-immersed sine and cosine rotary transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222466389.1U CN218768946U (en) | 2022-09-16 | 2022-09-16 | Sealing structure of oil-immersed sine and cosine rotary transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218768946U true CN218768946U (en) | 2023-03-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222466389.1U Active CN218768946U (en) | 2022-09-16 | 2022-09-16 | Sealing structure of oil-immersed sine and cosine rotary transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218768946U (en) |
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2022
- 2022-09-16 CN CN202222466389.1U patent/CN218768946U/en active Active
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